Copper RFID Shielding Fabric - Anti-Magnetic & Radiation Protection, Blocks RFID/RF, Reduces EMF/EMI for Smart Meters

I bought this because I'm probably paranoid and concerned that radio waves from my smart meter and router may be affecting me.I tested its effectiveness by wrapping a phone in it and ringing it. The signal wouldn't go through. There's ample material provided. I was able to shield the area between smart metre and wi-fi router and my bed in the room above.The material is conductive so you can ground it using a drawing pin and a length of wire to a suitable earthing point.A strip cut to fit my wallet adds privacy to my various cards too.

Used for protecting hand made wallets, passport covers etc.

Very good

I made two car key fob holders with this material, one inside the other and even double covered the stitched areas with overlapping material glued in place.... in other words there is absolutely no way the signal can get out except through the DOUBLE material....... but with my key fob inside the double bag the car opens and operates as if there were no impedance

Seem to work Just fine for low level stuff

Grate fabric and quality 👌 do his job !

It's huge but it's needed as you need to wrap a phone up with several layers before it blocks even Bluetooth from my speaker but it works a little and it's cheapBut I'd prefer it to be thicker and smaller to get the same blocking power but at least it works somewhat

Provides good RFI protection